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How to calculate body mass index (body mass index standard formula)

BMI index (body mass index, also known as body weight) is the number obtained by dividing the number of kilogram of body weight by the square of the number of meters of body height. It is a commonly used international standard to measure the degree of obesity and health of human body. So what's the BMI? What is the standard range of body mass index?

BMI (body mass index, body mass index for short) is a number obtained by dividing the number of kilograms of body weight by the square of the number of meters of height. It is a standard commonly used in the world to measure the degree of obesity and health. It is mainly used for statistical purposes. When we need to compare and analyze the health effects of a person's weight on people of different heights, BMI is a neutral and reliable indicator.

The BMI value of adults below 18.5 is too light, 18.5 to 23.9 is normal, 24 to 27 is too heavy.

The formula of BMI was as follows

For example, if someone weighs 60kg and is 1.8m tall, his BMI is 60 / 1.8 ^ 2 = 18.5

BMI is suitable for all people from 18 to 65 years old, except children, developing teenagers, pregnant women, lactating mothers, the elderly and muscular people.

The normal range of the body mass index of Chinese adults is 18.5-24. The body mass index is used to measure whether a person is fat, thin and healthy. The method is to use the square of height and weight, that is, divide the number of kilos of weight by the square of the number of meters of height. The body mass index 18.5 indicates that he is underweight, and 18.5-24 is normal weight. If more than 28 people are considered obese in China, the international standard is 30, and more than 35 people are considered to be severely obese. If more than 40 people are considered to need metabolic surgery to solve obesity.

Body mass index is one of the most important indicators to reflect obesity and health, but there are also some special cases. For example, this person often keeps fit and exercises, and his muscles are very developed. The body mass index may be over 30, but his body composition is mainly muscle, but fat is very little. Such a person does not belong to obesity and does not need to lose weight.

There is also an indicator to reflect the amount of fat, that is, whether visceral fat is excessive, called waist circumference. Waist circumference is a latitude of standing there calmly and measuring, flat with your navel. If the male is more than 90cm and the female is more than 85CM, it is also called obesity. Obesity is mainly due to fat over a certain proportion, obesity can bring related diseases, especially the risk of cardiovascular and cerebrovascular diseases increased significantly, obesity can reduce the quality of life. Obesity is sometimes a symbol of poverty, obesity can shorten life expectancy, so hope to maintain a healthy weight.

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